It will be sticky again today in Niagara
Five regions in southwestern Ontario are now under a heat warning.
Environment Canada warning residents Windsor, Chatham-Kent, Rondeau Park, Leamington and Essex County to take measures to escape the heat.
The federal weather agency warns that maximum temperatures today will be in the low to mid-30s.
Minimum temperatures will be in the low 20s tonight and cooler air is expected tomorrow.
Today in Niagara, we can expect a high of 30 C with a humidex around 34 C.
And St. Catharines Fire Services is also reminding us not to leave our pets in hot vehicles.

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